Start Firefox in Safe Mode {web Link} by holding down the <Shift>
(Mac Options) key, and then starting Firefox. Is the problem still there?

Use this link to check that your plugins are up-to-date. If any are listed as unknown or research, do not worry about them.

Firefox unresponsive and seizes when I try to Tweet

This happened yesterday for the first time. I then have to use Task Manager to end the Firefox task. I checked to see if there was a later version of Firefox available and updated to Version 44.0 in the hope that would resolve the problem. It still continued to happen. I can Retweet, Like or Reply to another Tweet but not start a new Tweet using the Tweet button.

I restarted Firefox in Safe Mode and it is still frozen and unresponsive when I try to Tweet

All recognised plugins are up to date but the following unknowns are a mix :

Google Earth Plugin (v. 7.1.5.1557) - now updated Picasa (v. 3.0.0.0) now updated DjVu Plugin Viewer - now up to date Google Update - updated 02 Feb 2016

Windows Plug-ins should be updated automatically by Windows updates or should they: Windows Activation Technologies (v. 7.1.7600.16395) - updated Sept 2012 Windows Live™ Photo Gallery (v. 15.4.3538.513) - updated May 2011 As the last update is so long ago, are they still relevant

The OP has not replied to say if they resolved the same problem

Figgerty If this does not help, Please go to the top of any support.mozilla.org web page and use the Ask A Question link; https://support.mozilla.org/en-US/questions/new This will let us look at your system details. No Personal Information Is Collected.

Many site issues can be caused by corrupt cookies or cache.

• Clear the Cache and

• Remove Cookies
  Warning ! ! This will log you out of sites you're logged in to.

Type about:preferences<Enter> in the address bar.

• Cookies; Select Privacy. Under History, select Firefox will Use Custom Settings. Press the button on the right side called Show Cookies. Use the search bar to look for the site. Note; There may be more than one entry. Remove All of them.
• Cache; Select Advanced > Network. Across from Cached Web Content, Press Clear Now.

If there is still a problem, Start Firefox in Safe Mode {web link} While you are in safe mode;

Type about:preferences#advanced<Enter> in the address bar.

Under Advanced, Select General. Look for and turn off Use Hardware Acceleration.

Poke around safe web sites. Are there any problems?

Then restart.

I was using Twitter a couple of hours ago and forgot about the Tweet button I was avoiding using and when I clicked it Firefox did not freeze. I have tried it several times since then and all is fine. I have not updated anything since I posted above and am puzzled why it 'cleared'.

Thanks for your help on this and I hope your reply helps someone else.

That was very good work. Well Done. Please flag your last post as Solved Problem so others will know.

I clicked Helpful reply but can't see Solved Problem. That's because I did not post the original question, I think.